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Joe Marchese Feature

Ice Breaker: Hand Tool Safety

February 11, 2013
By Joe Marchese
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Many careless injuries are the result of rushing to complete a task and not taking the necessary time to do it right.


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ZoneCO2 Feature

Considering Cascade, Transcritical, Transport, and Heat Pumps

February 11, 2013
By Peter Powell
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CO2 as a refrigerant in cascade supermarket systems, transcritical applications, transport refrigeration, and heat pumps were among major developments in recent years. Here is a summary of those developments.


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charging a system with R-22

EPA Further Tightens the R-22 Spigot

2013 Allocation Reduced to 39 Million Pounds
February 4, 2013
By Peter Powell
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It appears as if the spigot of new R-22 available to HVACR contractors has been tightened even more in 2013. Users of the world’s most popular HCFC could expect close to 30 percent less of new R-22 this year than last, according to some reports.


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Commercial Refrigeration Condensing Unit

Emerson Climate Technologies: Commercial Refrigeration Condensing Unit

January 28, 2013
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The Copeland Scroll™ FFAP Series condensing unit utilizes the Copeland Scroll ZSKA refrigeration compressor (1.5 to 5 hp) and is compatible with a variety of refrigerants, including R-404A, R-134a, R-407C, and R-22. It also has a wide operating range (from -30° to 45°F) of evaporator temperatures. 


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Undercounter, Walk-in Refrigeration Controller

KE2 Therm: Undercounter, Walk-in Refrigeration Controller

January 28, 2013
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Designed to control refrigeration units, the KE2 Temp + Defrost saves time on installation by eliminating the need for both a time clock and defrost thermostat, the company said, requiring only wires to connect power, solenoid, and temperature sensor. 


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Refrigeration Monitoring and Controls System

Heatcraft Worldwide Refrigeration: Refrigeration Monitoring and Controls System

January 21, 2013
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An enhanced monitoring and controls system allows restaurants to actively manage their refrigeration using a web-based solution. The Remote Refrigeration Control (RRC) provides real-time reports and alerts, which empowers users to manage the integrity of their food supply from any location.


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European Commission continues to deal with issues related to HFC refrigerants

Pressure on HFCs Continues in Europe

January 21, 2013
By Peter Powell
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The European Commission (EC), the executive body of the 25 member countries of the European Union (EU) responsible for proposing legislation, is continuing its efforts to phase down — and in some applications phase out — use of HFC refrigerants in much of Europe.


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heat pumps in refrigeration applications were focus of discussions at Chillventa

What Refrigeration Personnel Can Learn From Heat Pumps

January 21, 2013
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The refrigerator is actually a heat pump, as the method of operation is identical apart from one difference: Heat is extracted from the refrigerator and discharged into the surroundings, whereas the heat pump uses the thermal energy in the surroundings for heating purposes. 


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normal operating system where the highside contains refrigerant in three conditions

Using the P-T Chart to Diagnose Refrigeration, A/C System Problems

January 21, 2013
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The purpose of this article is to not only demonstrate the proper use of the pressure-temperature relationship, but to also illustrate how service technicians can use the P-T chart to thoroughly analyze a refrigeration or air conditioning system.


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Contractor of the Year award

CHC Pack, Refrigeration Training Earn Honors

January 21, 2013
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A combined heating and cooling (CHC) pack is a design for use in convenience stores. The technological development, along with development of a European Refrigeration Training Academy, earned WR Refrigeration honors at the National ACR Awards in England. 


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